PCI Express to PCI Adapter

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PCI Express to PCI Adapter
PLX Technology PEX 8111 PCI to PCI Express bridge
Windows 2k/2003/2008/XP/Vista/Win7/8 compatible!

PCI Express x1 cards have been scarce since the introduction of the bus several years ago. We now offer a PCI Express x1 adapter for  server or desktop PCs that converts PCI Express x1 bus to PCI.

The adapter utilizes a PLX Technology PEX 8111 PCI to PCI Express bridge chip.  It will accept standard or low profile PCI cards.  As a generic PCI to PCI Express adapter it should work well with most PCI cards.

This adapter allows you to use your existing PCI cards in the PCI Express slot of your mother board. 
It  can accept one of the half height cards designed for 2U server chassis environments, such as a Fire wire or Gigabyte Ethernet card. The 32bit 33MHz adapter’s 4 pin connector is connected directly to the power supply of your PC. The heat generated by the card is very low. The adapter has a bracket with a large gap to allow you to plug things into the card.

The adapter will also accept a full height PCI card if your case has the extra headroom to accept a higher card.

PCI Express X1 to PCI bus adapter card
Technical benefit: A card in the PCIe slot gets the full dedicated PCI bandwidth, one of the key benefits of the PCIe Point-to-Point infrastructure. This contrasts with  a traditional PCI bus system where the card would have to share the resources with cards in the other slots, and any on-board PCI controllers, such as SATA adaptors or Gigabit Ethernet, which can be quite bandwidth hungry.
  • Converts a PCI Express X1 slot into a regular PCI slot - use legacy PCI devices on your PC
  • Easy Plug and Play Installation
  • Power tap included connects to a standard 5 volt power supply connector
  • Easily fits into standard PC cases
  • PCI Express 1 Lane Port (1 virtual channel), 2.5Gbps per direction
  • Supports PCI 32 bit 33MHz bus one slot
  • PCI Express Specification Version 1.0 Compliant
  • PCI Specification Version 2.3 Compliant
  • Combination low profile PCI 32 bit host card
  • OS support: Windows 2000/NT/2003/ XP/Vista/2008/Win7/8 & Linux


  • Bus Type :

    − One-lane (1X) PCI Express
    − PCI 32 bit 33Mhz Bus one slot
  • Compliance :

    - Supports PCI slot 3.3V/1A, 3.3Vaux/100mA, 5V/5A and 12V/500mA
    - Card access opening is 2.3 in (59 mm) long
    - Provide 4 pin power connector (uses standard 12V and 5V drive power plug )
    - RoHS compliant
    - Regulatory approval(s) CE and FCC(DoC)

PCI Express adapter card handles full height PCI cards
Adapter with full height card

Questions? see our FAQ

PCI Express adapter card handles half height cards
Adapter with half height card
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System Requirements
  • PCI Express Bus - PCIe-equipped PC with one available PCI Express X1 slot
  • 5 volt power supply tap on PC's AT or ATX power supply
  • 1 5/8" (40 mm) clearance above standard height card if using a full height card with adapter.
  SATA to IDE power adapter lets you use a SATA  power cord when an IDE plug is not available. More...



PCIE left slot riser lets you install adapter and a PCI card in a low profile computer case or micro form factor server case (1u or 2u supported).


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PCIE Serial Parallel Ports Card lets you add serial and parallel ports to a computer with a spare PCIE X1 slot. More...


  Installation and Configuration

How to Install

1) Power down computer and remove power

2) Insert the adapter into a PCI Express slot.
Note: PCIe slots are backwards compatible with smaller PCIe cards, so a x4 or greater slot can be used.

3) Plug the power 4 pin power connector to the computer's power supply.

4) Plug the PCI card into the adapter.
Note: No drivers are needed to install the adapter card. It only acts as a bridge adapter for the PCI card.


How to Check the Driver Installation

1) Go to the Device Manager:

Windows XP/Vista/Win7/8:  Start -> Control Panel -> System -> Hardware -> Device Manager

Windows 2000/2003:  Start -> Settings -> Control Panel -> System -> Hardware -> Device Manager

2) Click on the plus sign (+) next to "System Devices."

3) If the device is installed properly, you will see an additional "PCI  standard PCI to PCI bridge" listed.

Technical Support:

If you are having problems with the Adapter that this page or our FAQ page does not address, please contact your reseller.

Warranty Information

This product is backed by a one year warranty. Beagle Software warrants this product against defects in materials and workmanship for the one year, following the initial date of purchase. During this period, the products may be returned for repair, or replacement with equivalent products at our discretion. The warranty covers parts and labor costs only. Beagle Hardware does not warrant its products from defects or damages arising from misuse, abuse, alteration, or normal wear and tear.

For More Information

Adapter FAQ

Comparison of PCI technologies

ClockCard PCI card



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Last reviewed February 10, 2016